Octynic acid
[化] 辛炔酸
🧩 词语组成解析
🗣️ 情景例句
What is it?
是个什么样的计划？
Work bears witness who does well.
工作能证明谁人做得好。
The great cities have been built with no regard for us.
大城市的建设毫不关心我们。